/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package servlets;

import bean.BasicsStatelessLocal;
import entities.Basics;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import javax.ejb.EJB;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author HTH2207
 */
public class ServletController extends HttpServlet {

    @EJB
    private BasicsStatelessLocal basicsStateless;

    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        String action = request.getParameter("action");
        String id = request.getParameter("id");
        String eng = request.getParameter("eng");
        String viet = request.getParameter("viet");
        String audio = request.getParameter("audio");
        String img = request.getParameter("img");
        try {
            if (action.equalsIgnoreCase("List")) {
                List<Basics> list = basicsStateless.getAllSentence();
                request.getSession().setAttribute("list", list);
                response.sendRedirect("./ListSentence.jsp");
            } else if (action.equalsIgnoreCase("Add")) {
                basicsStateless.addSentence(id, eng, viet, audio, img);
                request.getSession().setAttribute("message", "inserted sucsessfully!");
                response.sendRedirect("./message.jsp");
            } else if (action.equalsIgnoreCase("Update")) {
                basicsStateless.updateSentence(img, eng, viet, audio, img);
                request.getSession().setAttribute("message", "updated sucsessfully!");
                response.sendRedirect("./message.jsp");
            } else if (action.equalsIgnoreCase("Delete")) {
                basicsStateless.removeSentence(id);
                   request.getSession().setAttribute("message", "Deleted sucsessfully!");
                response.sendRedirect("./message.jsp");
            }
        } finally {
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
